arkei | e45414a2f8f7ca67e5438949f1ae1b6e0470007bcd8a55eb058cf87f6b078639

Analysis

max time kernel
124s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20220718-en
resource tags

arch:x64arch:x86image:win10v2004-20220718-enlocale:en-usos:windows10-2004-x64system
submitted
20-07-2022 22:35

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General

Target

09f2b519e22c52721d33d5c3c0ac1f5e.exe
Size

2.5MB
MD5

09f2b519e22c52721d33d5c3c0ac1f5e
SHA1

b451e08f7d58118cf62c87f426dd95dda5aabd3e
SHA256

e45414a2f8f7ca67e5438949f1ae1b6e0470007bcd8a55eb058cf87f6b078639
SHA512

2cdf51fb04c5fae673d6d20cb3229e8c3fda932bf5a4ff167465d0d99407f1183792bb98dbf25d154d1fbc174a78e52da5bf38fae6fb82b6498fc2e50a6c1c5f

Score

10^/10

arkei default spyware stealer

Malware Config

Extracted

Family

arkei

Botnet

Default

Signatures

Arkei
Arkei is an infostealer written in C++.
stealer arkei
Loads dropped DLL 2 IoCs

Processes:

AppLaunch.exe

pid process

202944 AppLaunch.exe
202944 AppLaunch.exe
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Suspicious use of SetThreadContext 1 IoCs

Processes:

09f2b519e22c52721d33d5c3c0ac1f5e.exe

description pid process target process

PID 4272 set thread context of 202944 4272 09f2b519e22c52721d33d5c3c0ac1f5e.exe AppLaunch.exe

pid	process
202944	AppLaunch.exe
202944	AppLaunch.exe

description	pid	process	target process
PID 4272 set thread context of 202944	4272	09f2b519e22c52721d33d5c3c0ac1f5e.exe	AppLaunch.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

AppLaunch.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AppLaunch.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

203224 timeout.exe

pid	process
203224	timeout.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

09f2b519e22c52721d33d5c3c0ac1f5e.exeAppLaunch.execmd.exe

description	pid	process	target process
PID 4272 wrote to memory of 202932	4272	09f2b519e22c52721d33d5c3c0ac1f5e.exe	AppLaunch.exe
PID 4272 wrote to memory of 202932	4272	09f2b519e22c52721d33d5c3c0ac1f5e.exe	AppLaunch.exe
PID 4272 wrote to memory of 202932	4272	09f2b519e22c52721d33d5c3c0ac1f5e.exe	AppLaunch.exe
PID 4272 wrote to memory of 202944	4272	09f2b519e22c52721d33d5c3c0ac1f5e.exe	AppLaunch.exe
PID 4272 wrote to memory of 202944	4272	09f2b519e22c52721d33d5c3c0ac1f5e.exe	AppLaunch.exe
PID 4272 wrote to memory of 202944	4272	09f2b519e22c52721d33d5c3c0ac1f5e.exe	AppLaunch.exe
PID 4272 wrote to memory of 202944	4272	09f2b519e22c52721d33d5c3c0ac1f5e.exe	AppLaunch.exe
PID 4272 wrote to memory of 202944	4272	09f2b519e22c52721d33d5c3c0ac1f5e.exe	AppLaunch.exe
PID 202944 wrote to memory of 203172	202944	AppLaunch.exe	cmd.exe
PID 202944 wrote to memory of 203172	202944	AppLaunch.exe	cmd.exe
PID 202944 wrote to memory of 203172	202944	AppLaunch.exe	cmd.exe
PID 203172 wrote to memory of 203224	203172	cmd.exe	timeout.exe
PID 203172 wrote to memory of 203224	203172	cmd.exe	timeout.exe
PID 203172 wrote to memory of 203224	203172	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\09f2b519e22c52721d33d5c3c0ac1f5e.exe
"C:\Users\Admin\AppData\Local\Temp\09f2b519e22c52721d33d5c3c0ac1f5e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4272

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
2⤵
PID:202932

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:202944

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe" & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:203172

C:\Windows\SysWOW64\timeout.exe
timeout /t 5
4⤵
- Delays execution with timeout.exe
PID:203224

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\ProgramData\mozglue.dll
Filesize
133KB

MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

Download Submit
C:\ProgramData\nss3.dll
Filesize
1.2MB

MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

Download Submit
memory/202932-130-0x0000000000000000-mapping.dmp

Download
memory/202944-131-0x0000000000000000-mapping.dmp

Download
memory/202944-132-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/202944-139-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/202944-140-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/202944-141-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/202944-163-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/203172-162-0x0000000000000000-mapping.dmp

Download
memory/203224-164-0x0000000000000000-mapping.dmp

Download